When you walk into a place where people have been smoking weed, there's always that one guy who's too high to function and is hanging out on the couch. Barely moves or acknowledges his surroundings and is clearly lost in thoughts of some sort. He's couch locked and thusly, the Couch Guy

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couch guy- a person who resides on someone's couch. He or she may or may not pay rent for the couch. Usually pays through karmic duties such as cleaning or cooking. Usually someone adept to the art of couch surfing. Will usually reside on a couch anywhere from a day to a year.